As the much-anticipated constitutional challenge to the Affordable Care Act gets its hearing in the highest court of the land Tuesday, stakeholders will closely listen to the justices’ line of questioning to glean any insights on the three questions in the case: Do the GOP states and individual Texans have standing? Is the individual mandate legal without the mandate penalty? If the mandate is unconstitutional, can it be cleanly severed from the rest of the law? The arguments in the...